Leandra was born in Kirkwall towards the close of the Blessed Age, the first child of the powerful Lord Aristide Amell, and his wife Lady Bethann Walker. When Leandra was still a baby, she was joined by a younger brother, Gamlen. From an early age, Leandra and her brother were inseparable, serving as each other's best friend and confidant.
Throughout her childhood, Leandra was doted on by her parents who considered her their pride and joy, and showered her with love and gifts. Gamlen however was not as beloved, and slowly grew to resent his sister's status as the family favorite. Although Gamlen was bitter at his parents' favoritism, the siblings continued to adore each other. Whenever Leandra received a gift from her parents, she questioned why Gamlen didn't receive the same. As she excelled in academics, she often assisted Gamlen with his studies and defended him whenever he lagged behind.